An upcoming memoir by U.S. actor Billy Bob Thornton will include an introduction by his ex-wife Angelia Jolie, its publisher said. William Morrow, a division of HarperCollins, will publish \"The Billy Bob Tapes: A Cave Full of Ghosts\" on May 15, The Hollywood Reporter said. The book, with a forward by Jolie, will include \"colorful tales of his modest Southern upbringing, his bizarre phobias, his life, his loves [including his heartbreakingly brief marriage to fellow Oscar winner Angelina Jolie], and, of course, his movie career,\" the publisher said Thursday. Thornton and Jolie were tabloid fodder as each wore a vial containing the other\'s blood on a necklace during their marriage from 2000-2003. Thornton, who has remained on good terms with Jolie since their divorce, has denied his next film, \"And Then We Drove,\" is based on their relationship. \"I would never make a movie about my best friend, either, or any other ex of mine, or something,\" he told New York Magazine. \"That\'s not my bag. I don\'t mind exposing myself, but I\'m certainly not gonna make a movie about someone else.\"